glass table for dock?

[born2golf]

I recently switched to the go launcher from Launcher pro. LP had an option to use a glass table as the background image for the dock. Go launcher recently added functionality for a custom dock background but doesn't provide any options in app. Does anyone know where I can find an image file for this purpose?

 

[born2golf]

If anyone cares, I found this one and modified if for transparency and opacity a bit.